Last Updated on October 2, 2024 by Divernet
Should I Add a Second LPI Hose For Inflating dSMBs? #scuba #question @ScubaDiverMagazine
@josephdracula7487
Joseph dracula
#ask mark hello Mark I was wondering if you think it is ok to have a separate hose low pressure hose to have just for the DSMB to inflate. As so not to fumble around trying to reconnect to the BCD. What is your thoughts?
#scuba #scubadiving #scubadiver
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00:00 Introduction
00:31 Question
00:47 Answer
#ASKMARK hello, I’ve been considering adding a second inflator hose for DSMB inflation. I was then thinking it would be great if there was a T fitting available that could be attached to the end of my current hose and also my inflator and have a third T fitting with the same valve available for DSMB inflation. So it would be a locking male nozzle on top to go into my inflator hose, a Schrader valve on bottom to connect to my inflator and another Schrader off to one side left available for my DSMB. Do you think a dive shop could make one of these up for me? I’m thinking there may need to be a short piece of hose used between the fittings to make it all work. Unless all of these pieces could be threaded onto a T. Any thoughts or suggestions would be much appreciated.
They exist. Not with QD fittings but, switching blocks and splitters are quite common. They have standard regulator threads so you run a single regulator hose out from your 1st stage, a splitter on the end of that which has two 3/8″ female ports that you can fit a pair of LPI hoses.
If you ask for a Low Pressure Splitter that should do the job. Switching blocks tend to be more expensive and do the opposite: two different lines in, one line out and you can choose which line is active.
Learning to use the mouth seems like a more useful skill than adding more gear.
I’d say disconnecting your BCD or Dry suit hose whilst under water is a really bad idea
#askmark very glad you brought up dry suits and re-connecting the LP hose. I was doing tank removal and replace drills in SM setup. And probably disconnected the inflator 10 times. At the end of the dive my chest to my belly button was very wet. Upon asking more experienced divers I was told less than 1 ML of water can get in between those one-way valves. I leak tested like crazy focusing on the inflator mechanism and the zip, and couldn’t find the culprit. Is it possible that running those drills caused that amount of water to enter my suit?
Yeah, the water will come through the inflator if you disconnect and reconnect underwater. As they said; it won’t be a large amount of water each time but enough to get your chest wet.
Water spreads through materials and undersuit materials are designed to wick it away from your body and to the outer layers of material which is why it probably looked like a more substantial leak.
Always wondered about a tee off of the inflator hose
😎👍🤿thanks
Great to see the horizontal format being back!
Love watching your Scuba Tips Mark!
excellent question. i never thought of that. if i was deploying a dsmb on a constant basis i would seriously think about it
A few years ago, my buddy inflated DSMB via quick connect . While doing so, he got a little exited and push pin got bend – and while DSMB departed to the surface, he was left with a nice strem of air coming out from his hose. We tried to connect it to BCD (whe hose he screwed up was used for drysuit when in cold water) – but bent pit wouldn’t allow the connector to click on.
So he ended up pitching the hose while we were at the safety stop.
And I had to use my octo for the last minute of the stop.
——
So yeah , fewer things you connect in disconnect under water – the better.
The nozzle that Mark shows probably will be the best.
Alternatively, use your mouth.
Yay horizontal format is back!